Novel steering yoke cold forging die design structure
Through the design of the new steering joint fork cold forging mold, the combination of floating blocks and extruded columns has been used to solve the problem of fork groove forming difficulties in traditional fork processing, and the efficient forming of fork grooves and the improvement of coaxiality is achieved, and the simplification of fork grooves is achieved. Processing process.
Patent Information
- Application Number
- CN202421017130.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-11
AI Technical Summary
During the traditional fork processing, the fork groove position cannot be extruded and cut when the semi-finished product is placed vertically, resulting in a long processing time and insufficient coaxiality.
A new type of steering joint fork cold forging mold was designed, including preforming stations, head forming stations, positive extrusion-shaped bottom hole stations, fork groove forming stations and extrusion-shaped stations, through floating blocks, The cooperation between the four extrusion columns and the fifth extrusion columns forms a closed space, realizes accurate extrusion forming of the fork grooves, and uses a nitrogen spring to achieve movement and return.
It realizes efficient forming of fork grooves, shortens processing time, improves product coaxiality, and allows the semi-finished product to be processed at low altitudes in a vertical state.
Smart Images
Figure CN222221032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of yoke processing, in particular to a novel steering yoke cold forging die design structure. Background Art
[0002] The yoke is a kind of automotive part, mainly used in the steering system, so that the steering system can still transmit smoothly after the steering wheel height position is adjusted. The traditional yoke is formed by casting or forging the yoke and the mother shaft separately and then welding them. Generally, the forging will be upsetting first, and then the head of the yoke will be stamped to the specified size. Since the upper fork groove position cannot be formed by extrusion and cutting when the semi-finished product is placed vertically, it is necessary to disassemble it, replace the mold, and place the finished product horizontally, and then extrude and cut the fork groove, or perform subsequent fork groove processing by milling and other methods. This makes the product processing time longer and the coaxiality is not good enough.
[0003] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a new steering yoke cold forging die design structure. The utility model is achieved through the following technical solutions:
[0005] A new steering yoke cold forging die design structure includes a preforming station, a head forming station and a positive extrusion tooth bottom hole station, and also includes a fork groove forming station and a tooth extrusion station. The fork groove forming station includes a fourth base, a fourth lifting rod, a floating block and a fourth extrusion column. The fourth base is provided with a fourth bottom hole, and the fourth lifting rod is slidably arranged in the fourth bottom hole, and the fourth lifting rod can move up and down, and the floating block can move up and down. The floating block is provided with a first forming hole, the fourth extrusion column is arranged in the first forming hole, and the fourth extrusion column is slidably connected to the floating block. The tooth extrusion station includes a fifth base, a sliding block, a contact block, a fifth extrusion column and a fifth lifting rod. The sliding block is slidably connected to the fifth base, and the sliding block is provided with a fifth bottom hole. The fifth lifting rod is arranged in the fifth bottom hole, the contact block can move up and down, and the contact block is provided with a second forming hole. The fifth extrusion column is fixedly arranged in the second forming hole.
[0006] In the above technical scheme: the preforming station is used to upset the rod-shaped raw material; the head forming station is used to stamp the head of the raw material; the positive extrusion tooth-shaped bottom hole station is used to stamp the bottom hole of the raw material head; the fork groove forming station is used to pressurize the fork groove; the tooth extrusion station is used to process the toothed inner wall of the bottom hole of the product; the fourth base is used to set the fourth bottom hole and the fourth lifting rod, wherein the fourth bottom hole is used to place the semi-finished product, and the fourth lifting rod is used to close the lower end of the fourth bottom hole, and at the same time, the semi-finished product is pushed out of the fourth bottom hole after the stamping is completed; the floating block can move up and down to contact with the fourth base and extrude on the fourth extrusion column The fourth extrusion column can move up and down, so that the semi-finished product can be extruded, so that the fork groove is extruded and formed; the fifth base is used to set the fifth bottom hole and the fifth lifting rod; the fifth bottom hole is used to place the semi-finished product; the fifth lifting rod is used to close the lower part of the fifth bottom hole, and is also used to push the product out of the fifth bottom hole after the processing is completed; the sliding block is slidably connected to the fifth base, so that there is a certain buffer when the contact block moves downward and contacts the sliding block; the contact block is used to contact the sliding block, so that the fifth bottom hole and the second forming hole form a closed space, so that the product can be extruded and formed.
[0007] The utility model is further configured as follows: a second forming hole is provided on the contact block, and the fifth extrusion column is fixedly arranged in the second forming hole.
[0008] In the above technical solution: after the contact block contacts the sliding block, the second forming hole and the fifth bottom hole together form a closed space, so that the fork groove position can be accurately extruded and formed.
[0009] The utility model is further configured as follows: the fourth extrusion column coincides with the central axis of the fourth bottom hole.
[0010] In the above technical solution: the central axis of the fourth extrusion column coincides with the central axis of the fourth bottom hole, so that the fourth extrusion column will not interfere with the fourth base when descending.
[0011] The utility model is further configured as follows: the fifth extrusion column coincides with the central axis of the fifth bottom hole.
[0012] In the above technical solution: the central axis of the fifth extrusion column coincides with the central axis of the fifth bottom hole, so that the fifth extrusion column will not interfere with the sliding block when descending.
[0013] The utility model is further configured as follows: the fork groove forming station also includes a connecting block, a first nitrogen spring is fixedly arranged on the connecting block, an output end of the first nitrogen spring is connected to the floating block, and the fourth extrusion column is fixedly connected to the connecting block.
[0014] In the above technical solution: the connecting block is used to set the first nitrogen spring; the first nitrogen spring is used to allow the floating block to have space to move up and down relative to the connecting block; the fourth extrusion column is fixedly connected to the connecting block, so that there is a certain space for the floating block and the fourth extrusion column to move up and down.
[0015] The utility model is further configured as follows: a second nitrogen spring is arranged in the fifth base, and an output end of the second nitrogen spring is connected to the sliding block.
[0016] In the above technical solution: the second nitrogen spring is used to realize the return of the sliding block.
[0017] The utility model is further configured as follows: the preforming station comprises a first base and a first extrusion column, the first extrusion column can move up and down, a first bottom hole is arranged on the first base, and a first lifting rod is arranged in the first bottom hole.
[0018] In the above technical solution: the first base is used to set the first bottom hole; the first lifting rod is used to close the lower part of the first bottom hole and push out the semi-finished product after processing is completed; the first extrusion column is used to realize the extrusion forming of the product together with the inner wall surface of the first bottom hole.
[0019] The utility model is further configured as follows: the head forming station comprises a second base and a second extrusion column, the second extrusion column can move up and down, a second bottom hole is arranged on the second base, and a second lifting rod is arranged in the second bottom hole.
[0020] In the above technical solution: the second base is used to set the second bottom hole; the second lifting rod is used to close the lower part of the second bottom hole and push out the semi-finished product after processing is completed; the second extrusion column is used to realize the extrusion forming of the product together with the inner wall surface of the second bottom hole.
[0021] The utility model is further configured as follows: the positive extrusion tooth-shaped bottom hole station includes a third base and a third extrusion column, the third extrusion column can move up and down, the third base is provided with a third bottom hole, and a third lifting rod is provided in the third bottom hole.
[0022] In the above technical solution: the third base is used to set the third bottom hole; the third lifting rod is used to close the lower part of the third bottom hole and push out the semi-finished product after processing is completed; the third extrusion column is used to realize the extrusion forming of the product together with the inner wall surface of the third bottom hole and the upper part of the third lifting rod.
[0023] The utility model discloses a new steering yoke cold forging die design structure, compared with the prior art:
[0024] 1. The utility model, through the setting of the fork groove forming station, can form a closed space through the cooperation of the first forming hole on the floating block and the fourth bottom hole on the base, thereby realizing the extrusion forming of the yoke fork groove which cannot be realized by conventional stamping, so that the coaxiality of the product is good and the processing time is short;
[0025] 2. The utility model sets a tooth-forming station, so that the tooth-forming can be performed on the low-altitude position of the product when the semi-finished product is in a vertical state. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the utility model;
[0027] Figure 2 It is a schematic diagram of the preforming station of the utility model;
[0028] Figure 3 It is a schematic diagram of the head forming station of the utility model;
[0029] Figure 4 It is a schematic diagram of the positive extrusion tooth-shaped bottom hole station of the utility model;
[0030] Figure 5 It is a schematic diagram of the fork groove forming station of the utility model;
[0031] Figure 6 It is a schematic diagram of the tooth extrusion station of the utility model;
[0032] Figure 7 This is a schematic diagram of the yoke product that needs to be processed.
[0033] The corresponding component names represented by the numbers and letters in the figure are: 10-preforming station; 101-first base; 101a-first bottom hole; 102-first extrusion column; 103-first lifting rod; 20-head forming station; 201-second base; 201a-second bottom hole; 202-second extrusion column; 203-second lifting rod; 30-positive extrusion tooth bottom hole station; 301-third base; 301a-third bottom hole; 302-third extrusion column; 303-third lifting rod; 40- Fork groove forming station; 401-fourth base; 401a-fourth bottom hole; 402-fourth lifting rod; 403-floating block; 403a-first forming hole; 404-fourth extrusion column; 405-connecting block; 406-first nitrogen spring; 50-tooth extrusion station; 501-fifth base; 502-sliding block; 502a-fifth bottom hole; 503-contact block; 503a-second forming hole; 504-fifth extrusion column; 505-fifth lifting rod; 506-second nitrogen spring. DETAILED DESCRIPTION
[0034] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.
[0035] like Figure 1-7 As shown, a novel cold forging die design structure of a steering yoke proposed in the utility model comprises a preforming station 10, a head forming station 20 and a positive extrusion toothed bottom hole station 30, and also comprises a fork groove forming station 40 and a toothed extrusion station 50, wherein the fork groove forming station 40 comprises a fourth base 401, a fourth lifting rod 402, a floating block 403 and a fourth extrusion column 404, wherein the fourth base 401 is provided with a fourth bottom hole 401a, and the fourth lifting rod 402 is slidably arranged in the fourth bottom hole 401a, and the fourth lifting rod 402 can move up and down, and the floating block 403 can move up and down, and the floating block 403 is provided with a first forming hole 403a, and the fourth extrusion column 404 is provided with a fourth bottom hole 401a. The pressure column 404 is arranged in the first forming hole 403a, and the fourth extrusion column 404 is slidably connected to the floating block 403. The tooth extrusion station 50 includes a fifth base 501, a sliding block 502, a contact block 503, a fifth extrusion column 504 and a fifth lifting rod 505. The sliding block 502 is slidably connected to the fifth base 501, and a fifth bottom hole 502a is arranged on the sliding block 502. The fifth lifting rod 505 is arranged in the fifth bottom hole 502a. The contact block 503 can move up and down. A second forming hole 503a is arranged on the contact block 503. The fifth extrusion column 504 is fixedly arranged in the second forming hole 503a. Among them, preferably, it also includes a base plate, and the fourth base 401 and the fifth base 501 are fixedly arranged on the base plate; the stations are arranged in the order of pre-forming station 10, head forming station 20, positive extrusion tooth bottom hole station 30, fork groove forming station 40 and tooth extrusion station 50; the raw materials or semi-finished parts are moved between the stations by a robot gripper; the upper part of the fifth lifting rod 505 is provided with a tooth-shaped pattern; the diameter of the first forming hole 403a is larger than that of the fourth extrusion column 404.
[0036] like Figure 1-7 As shown, the utility model proposes a new steering yoke cold forging die design structure, the contact block 503 is provided with a second forming hole 503a, and the fifth extrusion column 504 is fixedly arranged in the second forming hole 503a. The diameter of the second forming hole 503a is larger than that of the fifth extrusion column 504.
[0037] like Figure 1-7As shown, the utility model proposes a new type of steering yoke cold forging die design structure, the fourth extrusion column 404 coincides with the central axis of the fourth bottom hole 401a. The fourth bottom hole 401a is a stepped hole; the shape of the upper part of the fourth lifting rod 402 is consistent with the shape of the toothed bottom hole of the semi-finished product, and the outer diameter of the lower part is consistent with the diameter of the fourth bottom hole 401a.
[0038] like Figure 1-7 As shown, the utility model proposes a new type of steering yoke cold forging die design structure, the fifth extrusion column 504 coincides with the central axis of the fifth bottom hole 502a. The fifth bottom hole 502a is a stepped hole; the fifth bottom plate is also provided with a second flange sleeve fixedly provided, and the second flange sleeve is provided on the fifth lifting rod 505, the outer diameter of the second flange sleeve is consistent with the diameter of the lower part of the fifth bottom hole 502a, and the inner diameter thereof is consistent with the outer diameter of the fifth lifting rod 505.
[0039] like Figure 1-7 As shown, a new type of cold forging die design structure of a steering yoke proposed by the utility model, the fork groove forming station 40 also includes a connecting block 405, a first nitrogen spring 406 is fixedly arranged on the connecting block 405, the output end of the first nitrogen spring 406 is connected to the floating block 403, and the fourth extrusion column 404 is fixedly connected to the connecting block 405. Among them, a clearance hole is arranged on the floating block 403, the fourth extrusion column 404 passes through the clearance hole, and the diameter of the clearance hole is larger than the fourth extrusion column 404; preferably, the number of the first nitrogen springs 406 is three, and the three first nitrogen springs 406 are evenly arranged.
[0040] like Figure 1-7 As shown, a novel steering yoke cold forging die design structure proposed by the utility model, a second nitrogen spring 506 is arranged in the fifth base 501, and the output end of the second nitrogen spring 506 is connected to the sliding block 502. Preferably, the number of the second nitrogen springs 506 is three, and the three second nitrogen springs 506 are evenly arranged.
[0041] like Figure 1-7As shown, a new type of cold forging die design structure of a steering yoke proposed by the utility model, the preforming station 10 comprises a first base 101 and a first extrusion column 102, the first extrusion column 102 can move up and down, the first base 101 is provided with a first bottom hole 101a, and the first bottom hole 101a is provided with a first lifting rod 103. Among them, the first bottom hole 101a is a stepped hole; the diameter of the first extrusion column 102 is consistent with the diameter of the upper part of the first bottom hole 101a; the diameter of the first lifting rod 103 is consistent with the diameter of the lower part of the first bottom hole 101a.
[0042] like Figure 1-7 As shown, a new type of cold forging die design structure of a steering yoke proposed by the utility model, the head forming station 20 includes a second base 201 and a second extrusion column 202, the second extrusion column 202 can move up and down, the second base 201 is provided with a second bottom hole 201a, and the second bottom hole 201a is provided with a second lifting rod 203. Among them, the second bottom hole 201a is a stepped hole; the diameter of the second extrusion column 202 is consistent with the diameter of the upper part of the second bottom hole 201a; the diameter of the second lifting rod 203 is consistent with the diameter of the lower part of the second bottom hole 201a.
[0043] like Figure 1-7 As shown, a new type of cold forging die design structure of a steering yoke proposed by the utility model, the positive extrusion tooth-shaped bottom hole station 30 includes a third base 301 and a third extrusion column 302, the third extrusion column 302 can move up and down, the third base 301 is provided with a third bottom hole 301a, and the third bottom hole 301a is provided with a third lifting rod 303. Among them, the third bottom hole 301a is a stepped hole; the diameter of the third extrusion column 302 is consistent with the diameter of the upper part of the third bottom hole 301a; the diameter of the third lifting rod 303 is smaller than the diameter of the lower part of the third bottom hole 301a, and the diameter of the third lifting rod 303 is consistent with the size of the hole of the product to be processed; the first flange sleeve is fixedly provided on the third bottom plate, the first flange sleeve is sleeved on the third lifting rod 303, and the outer diameter of the first flange sleeve is consistent with the diameter of the lower part of the third bottom hole 301a, and the inner diameter of the first flange sleeve is consistent with the diameter of the third lifting rod 303.
[0044] The working principle of the utility model is:
[0045] a) upsetting the product through the preforming station: upsetting the raw material to a specified size through the extrusion of the outer wall of the first bottom hole, the top of the first lifting rod and the bottom surface of the first extrusion column;
[0046] b) The first lifting rod rises, so that the semi-finished product is pushed out of the first bottom hole, and is clamped by the robot claw and transported to the head forming station;
[0047] c) Preliminarily forming the product head through the head forming station: through the extrusion of the outer wall of the second bottom hole, the top of the second lifting rod and the bottom surface of the second extrusion column, the semi-finished product head is extruded to a specified size;
[0048] d) The second lifting rod rises, so that the semi-finished product is pushed out of the second bottom hole, and is clamped by the robot claw and transported to the positive extrusion tooth bottom hole station;
[0049] e) Extruding a structural hole at the bottom of the product through the positive extrusion tooth-shaped bottom hole station: through the extrusion of the outer wall of the third bottom hole, the upper part of the third lifting rod, the top of the first flange sleeve and the bottom surface of the third extrusion column, the length of the lower part of the semi-finished product reaches a specified size, and the hole is extruded and formed;
[0050] f) The third lifting rod rises, so that the semi-finished product is pushed out of the third bottom hole, and is clamped by the robot claw and transported to the fork groove forming station;
[0051] g) Extruding the fork groove of the upper part of the product through the fork groove forming station: the inner wall of the fourth bottom hole, the floating block, the connecting block and the upper side surface of the fourth lifting rod and the stepped surface together form a closed space, and then through the extrusion of the fourth extrusion column, the upper part of the product extends upward to fill the first forming hole of the floating block, so that the fork groove is partially formed;
[0052] h) The fourth lifting rod rises, so that the semi-finished product is pushed out of the fourth bottom hole, and is clamped by the mechanical claw and transported to the tooth extrusion station;
[0053] i) Extruding the tooth shape in the fork groove on the upper part of the product through the tooth shape extrusion station: through the extrusion of the contact block, the sliding block, the tooth shape on the fifth lifting rod and the fifth extrusion column, the tooth shape in the bottom hole of the product is extruded and formed;
[0054] j) The fifth lifting rod rises, so that the product is pushed out of the fifth bottom hole and is grasped by the robot and transported to the designated location.
[0055] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
Claims
1. A new type of steering yoke cold forging die design structure, comprising a preforming station (10), a head forming station (20) and a positive extrusion tooth bottom hole station (30), characterized in that: The invention also comprises a fork groove forming station (40) and a tooth extrusion station (50), wherein the fork groove forming station (40) comprises a fourth base (401), a fourth lifting rod (402), a floating block (403) and a fourth extrusion column (404), wherein the fourth base (401) is provided with a fourth bottom hole (401a), and the fourth lifting rod (402) is slidably arranged in the fourth bottom hole (401a), and the fourth lifting rod (402) can move up and down, and the floating block (403) can move up and down, and the floating block (403) is provided with a first forming hole (403a), and the fourth extrusion column (404) is provided with a first forming hole (403a). ) is arranged in the first forming hole (403a), and the fourth extrusion column (404) is slidably connected to the floating block (403), the tooth extrusion station (50) includes a fifth base (501), a sliding block (502), a contact block (503), a fifth extrusion column (504) and a fifth lifting rod (505), the sliding block (502) is slidably connected to the fifth base (501), and a fifth bottom hole (502a) is arranged on the sliding block (502), the fifth lifting rod (505) is arranged in the fifth bottom hole (502a), and the contact block (503) can move up and down.
2. A new steering yoke cold forging die design structure according to claim 1, characterized in that: The contact block (503) is provided with a second forming hole (503a), and the fifth extrusion column (504) is fixedly arranged in the second forming hole (503a).
3. A new steering yoke cold forging die design structure according to claim 2, characterized in that: The fourth extrusion column (404) coincides with the central axis of the fourth bottom hole (401a).
4. A new steering yoke cold forging die design structure according to claim 3, characterized in that: The fifth extrusion column (504) coincides with the central axis of the fifth bottom hole (502a).
5. A new steering yoke cold forging die design structure according to claim 4, characterized in that: The fork groove forming station (40) also includes a connecting block (405), on which a first nitrogen spring (406) is fixedly arranged, an output end of the first nitrogen spring (406) is connected to the floating block (403), and the fourth extrusion column (404) is fixedly connected to the connecting block (405).
6. A new steering yoke cold forging die design structure according to claim 5, characterized in that: A second nitrogen spring (506) is arranged inside the fifth base (501), and an output end of the second nitrogen spring (506) is connected to the sliding block (502).
7. A new type of steering yoke cold forging die design structure according to claim 1 or 6, characterized in that: The preforming station (10) comprises a first base (101) and a first extrusion column (102), wherein the first extrusion column (102) is movable up and down, and a first bottom hole (101a) is provided on the first base (101), and a first lifting rod (103) is provided in the first bottom hole (101a).
8. A new type of steering yoke cold forging die design structure according to claim 7, characterized in that: The head forming station (20) comprises a second base (201) and a second extrusion column (202), wherein the second extrusion column (202) is movable up and down, and a second bottom hole (201a) is arranged on the second base (201), and a second lifting rod (203) is arranged in the second bottom hole (201a).
9. A new steering yoke cold forging die design structure according to claim 8, characterized in that: The positive extrusion tooth-shaped bottom hole station (30) comprises a third base (301) and a third extrusion column (302), wherein the third extrusion column (302) can move up and down, and a third bottom hole (301a) is arranged on the third base (301), and a third lifting rod (303) is arranged in the third bottom hole (301a).